package com.hisense.ovcloud.apicontrol.tool;

import java.io.ByteArrayOutputStream;
import java.util.Arrays;
import java.util.Base64;

public class HiAESUtil {
    private static int[] T1 = new int[] {
            0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
            0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
            0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
            0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
            0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
            0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
            0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
            0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
            0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
            0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
            0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
            0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
            0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
            0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
            0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
            0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16 };
    private static int[] T2 = new int[] {
            0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb,
            0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb,
            0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
            0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25,
            0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92,
            0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
            0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06,
            0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b,
            0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
            0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e,
            0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b,
            0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
            0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f,
            0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef,
            0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
            0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d };
    private int[][][] T3 = {
            {{0xEB, 0x16, 0x80, 0x74},{0xD0, 0xBA, 0x93, 0xB9},{0x62, 0xBF, 0xF7, 0xBF},{0x12, 0xA6, 0x60, 0x68}},
            {{0xFF, 0x9A, 0xF3, 0x9E},{0xAC, 0xC6, 0xA8, 0xCA},{0x3E, 0x51, 0x32, 0x55},{0x2C, 0x58, 0x30, 0x5C}},
            {{0x3F, 0xA5, 0x56, 0xC8},{0xB7, 0x71, 0xD9, 0x1B},{0x28, 0x79, 0x43, 0x16},{0x13, 0x53, 0x63, 0x3F}},
            {{0x0E, 0xAB, 0xFD, 0x35},{0x1A, 0x6B, 0xB2, 0xAD},{0x00, 0x79, 0x3E, 0x28},{0xF4, 0xBB, 0xD8, 0xE7}},
            {{0x31, 0x9A, 0x67, 0x52},{0x01, 0x6A, 0xD8, 0x1B},{0xA9, 0xD0, 0x81, 0xA9},{0xE6, 0x2D, 0xF5, 0x12}},
            {{0x40, 0xDA, 0xBD, 0xEF},{0x6A, 0x00, 0xD8, 0x6B},{0x0F, 0xDF, 0x0F, 0xA6},{0x2C, 0x2D, 0xD8, 0xCA}},
            {{0x01, 0xDB, 0x66, 0x89},{0x9F, 0x9F, 0x47, 0xF5},{0xD7, 0x08, 0x7E, 0xD8},{0xCC, 0xF2, 0x2A, 0xE0}},
            {{0xE1, 0x3A, 0x5C, 0xD5},{0x5A, 0xC5, 0x82, 0xC5},{0x3A, 0x32, 0x35, 0xED},{0x53, 0x55, 0x7F, 0x9F}},
            {{0x72, 0x48, 0x14, 0xC1},{0xBC, 0x79, 0xFB, 0xE6},{0x0F, 0x3D, 0xD8, 0x35},{0xE5, 0x56, 0x29, 0xB6}},
            {{0x66, 0x2E, 0x3A, 0xFB},{0x7D, 0x04, 0xFF, 0xC1},{0x3B, 0x06, 0x01, 0x34},{0x54, 0x2E, 0x07, 0xB1}},
            {{0x46, 0xAE, 0x21, 0x21},{0x68, 0xD3, 0x15, 0x26},{0x52, 0xD7, 0x2E, 0x97},{0xA9, 0x28, 0x28, 0xC3}} };
    private int[][][] T4 = new int[11][4][4];
    String T5 = "1234567890abcdef";
    /*
        加密方法
        输入明文
        输出密文（base64格式）
     */
    public String enc(String text) {
        f12();
        return Base64.getEncoder().encodeToString(f1(text.getBytes()));
    }
    /*
        解密方法
        输入密文（base64格式）
        输出明文
     */
    public String dec(String text) {
        f12();
        return f2(Base64.getDecoder().decode(text));
    }
    /*
        带因子的加密方法
        输入明文、预置密钥
        输出密文（base64格式）
    */
    public String encWithPreKey(String text, String preKey) {
        f13(preKey);
        return Base64.getEncoder().encodeToString(f1(text.getBytes()));
    }
    /*
        带因子的解密方法
        输入密文（base64格式）、预置密钥
        输出明文
     */
    public String decWithPreKey(String text, String preKey) {
        f13(preKey);
        return f2(Base64.getDecoder().decode(text));
    }
    private byte[] f1(byte[] p1) {
        int p2 = 16 - p1.length % 16;
        if (p2 == 16) {
            p2 = 0;
        }
        String p3 = new String(p1);
        if (p2 != 0) {
            for (int i = 0; i < p2; i++) {
                p3 += (char)p2;
            }
        }
        p1 = p3.getBytes();

        byte[] p4 = T5.getBytes();
        ByteArrayOutputStream p5 = new ByteArrayOutputStream();
        for(int i = 0; i < p1.length; i += 16) {
            byte[] p6 = Arrays.copyOfRange(p1, i, i + 16);
            p6 = f5(p4, p6);
            p4 = f3(p6);
            try {
                p5.write(p4);
            }catch (Exception e) {}
        }
        return p5.toByteArray();
    }
    private String f2(byte[] p1) {
        int n = p1.length / 16;
        String p2 = "";
        byte[] p3;
        for(int i = n; i > 0; i --) {
            byte[] p4 = Arrays.copyOfRange(p1, (i - 1) * 16, i * 16);
            if(i > 1) {
                p3 = Arrays.copyOfRange(p1, (i - 2) * 16, (i - 1) * 16);
            } else {
                p3 = T5.getBytes();
            }
            p4 = f4(p4);
            p4 = f5(p3, p4);
            if(i == n) {
                int p5 = p4[p4.length - 1];
                if( p5 > 0 && p5 < 16) {
                    p2 = new String(p4).substring(0, 16 - p5);
                } else {
                    p2 = new String(p4) + p2;
                }
            } else {
                p2 = new String(p4) + p2;
            }
        }
        return p2;
    }
    private byte[] f3(byte[] p1) {
        byte[] p2 = new byte[p1.length];
        byte[][] p3 = new byte[4][4];
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j ++) {
                p3[j][i] = p1[i * 4 + j];
            }
        }
        int p4;
        for(p4 = 1; p4 < 10; p4 ++) {
            p3 = f6(p3);
            for(int i = 0; i < 4; i ++) {
                for(int j = 0; j < 4; j++) {
                    int p5 = (int)p3[i][j];
                    if(p5 < 0) {
                        p5 = p5 + 256;
                    }
                    p3[i][j] = (byte)T1[p5 ^ T4[p4 - 1][i][j]];
                }
            }
            f10(p3);
        }

        p3 = f6(p3);
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j++) {
                int p6 = (int)p3[i][j];
                if(p6 < 0) {
                    p6 = p6 + 256;
                }
                p3[i][j] = (byte)T1[p6 ^ T4[9][i][j]];
            }
        }
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j ++) {
                p3[j][i] = (byte)(p3[j][i] ^ this.T4[10][i][j]);
            }
        }
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                p2[i * 4 + j] = p3[j][i];
            }
        }
        return p2;
    }
    private byte[] f4(byte[] p1) {
        byte[] p2 = new byte[p1.length];
        byte[][] p3 = new byte[4][4];
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j ++) {
                p3[j][i] = p1[i * 4 + j];
            }
        }
        int p4 = 10;
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j ++) {
                p3[j][i] = (byte)(p3[j][i] ^ T4[p4][i][j]);
            }
        }
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                int p5 = (int)p3[i][j];
                if (p5 < 0) {
                    p5 = p5 + 256;
                }
                p3[i][j] = (byte)(T2[p5] ^ T4[p4 - 1][i][j]);
            }
        }
        p3 = f7(p3);
        for(p4 = 9; p4 > 0; p4 --) {
            f11(p3);
            for(int i = 0; i < 4; i ++) {
                for(int j = 0; j < 4; j++) {
                    int p6 = (int)p3[i][j];
                    if(p6 < 0) {
                        p6 = p6 + 256;
                    }
                    p3[i][j] = (byte)(T2[p6] ^ T4[p4 - 1][i][j]);
                }
            }
            p3 = f7(p3);
        }
        for (int i = 0; i < 4; i++) {
            for (int j = 0; j < 4; j++) {
                p2[i * 4 + j] = p3[j][i];
            }
        }
        return p2;
    }
    private byte[] f5(byte[] p1, byte[] p2) {
        byte[] p3 = new byte[Math.min(p1.length, p2.length)];
        for(int i = 0; i < p3.length; i ++) {
            p3[i] = (byte)(p1[i] ^ p2[i]);
        }
        return p3;
    }
    private byte[][] f6(byte[][] p1) {
        byte[][] p2 = new byte[4][4];
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j++) {
                p2[i][j] = p1[i][(j + i) % 4];
            }
        }
        return p2;
    }
    private byte[][] f7(byte[][] p1) {
        byte[][] p2 = new byte[4][4];
        for(int i = 0; i < 4; i ++) {
            for(int j = 0; j < 4; j++) {
                p2[i][j] = p1[i][(j - i + 4) % 4];
            }
        }
        return p2;
    }
    private byte f8(byte b) {
        if ((b & 0x80) == 0) {
            return (byte) (b << 1);
        }
        return (byte) ((b << 1) ^ 0x11b);
    }
    private byte f9(byte a, byte b) {
        byte p1 = 0;
        while(a != 0) {
            if((a & 1) != 0) {
                p1 = (byte)(p1 ^ b);
            }
            b = f8(b);
            a = (byte)(a >>> 1);
        }
        return p1;
    }
    private void f10(byte[][] p1) {
        byte p2, p3, p4, p5;
        for(int j = 0 ; j < 4; j ++) {
            p2 = (byte)(f9((byte)0x02, p1[0][j]) ^ f9((byte)0x03, p1[1][j]) ^ p1[2][j] ^ p1[3][j]);
            p3 = (byte)(p1[0][j] ^ f9((byte)0x02, p1[1][j]) ^ f9((byte)0x03, p1[2][j]) ^ p1[3][j]);
            p4 = (byte)(p1[0][j] ^ p1[1][j] ^ f9((byte)0x02, p1[2][j]) ^ f9((byte)0x03, p1[3][j]));
            p5 = (byte)(f9((byte)0x03, p1[0][j]) ^ p1[1][j] ^ p1[2][j] ^ f9((byte)0x02, p1[3][j]));
            p1[0][j] = p2;
            p1[1][j] = p3;
            p1[2][j] = p4;
            p1[3][j] = p5;
        }
    }
    private void f11(byte[][] p1) {
        byte p2, p3, p4, p5;
        for(int j = 0 ; j < 4; j ++) {
            p2 = (byte)(f9((byte)0x0e, p1[0][j]) ^ f9((byte)0x0b, p1[1][j]) ^ f9((byte)0x0d, p1[2][j]) ^ f9((byte)0x09, p1[3][j]));
            p3 = (byte)(f9((byte)0x09, p1[0][j]) ^ f9((byte)0x0e, p1[1][j]) ^ f9((byte)0x0b, p1[2][j]) ^ f9((byte)0x0d, p1[3][j]));
            p4 = (byte)(f9((byte)0x0d, p1[0][j]) ^ f9((byte)0x09, p1[1][j]) ^ f9((byte)0x0e, p1[2][j]) ^ f9((byte)0x0b, p1[3][j]));
            p5 = (byte)(f9((byte)0x0b, p1[0][j]) ^ f9((byte)0x0d, p1[1][j]) ^ f9((byte)0x09, p1[2][j]) ^ f9((byte)0x0e, p1[3][j]));

            p1[0][j] = p2;
            p1[1][j] = p3;
            p1[2][j] = p4;
            p1[3][j] = p5;
        }
    }
    private void f12() {
        for (int r = 0; r < 11; r++) {
            for (int i = 0; i < 4; i++) {
                for (int j = 0; j < 4; j++) {
                    T4[r][i][j] = T3[r][i][j] ^ T3[10][i][j];
                }
            }
        }
    }
    private void f13(String p1) {
        for (int r = 0; r < 11; r++) {
            for (int i = 0; i < 4; i++) {
                for (int j = 0; j < 4; j++) {
                    T4[r][i][j] = T3[r][i][j] ^ p1.getBytes()[i * 4 + j];
                }
            }
        }
    }
}
